Window-regulator



l E. E. HElNTZ.

WINDW REGULATOR. APPLICATION FILED IAN-1,1921.

Patented Nav@ 29,*1921.

a SHEETS-'SHEET 2.

' 'lNI/ENTOR.

ATTORNEY, l

E. E. HEINTZ. WINDOW REGULATOR.

APPLICATION FILED 1AN.1,1921.

Patented Nov. 29, 1921.

3 SHEETS-SHEET 3.

INVENTOR.`

MJ v B A TTORNE Y.

EENEsT E. HEINTZ, or DETROIT,

MICHIGAN, ASSIGNOR TO TERNSTEDT MANFAC- TUBING COMPANY, OFDETROIT,MICHIGAN, A CORPORATION OF MICHIGAN.

WIN DOW-REGULATOR.\

Specification of Letters Patent.

PatentedpNov. 29, 1921.

Application filed January 7, 1921. Serial No. 495,597.

To allwh'om t may concern.: l

Be it known that I, ERNEST E. HEIN Tz, a citizen of the United States,residin at Detroit, in the county of Wayne and tate d of Michigan, haveinvented certain new and useful Improvements in Window-Regulators, ofwhich the following isa specification.

This invention relates to window regulators, and has for its object. awindow regulator which is actuated by a lever sliding along thegarnish-rail .of the window. It is primarily intended for application toclosed automobile bodies.

The rear quarter window presents somewhat of a problem in applying theusual window regulator thereto. In fact, it has been such ayproblem thatthe' majority of cars have not used a window regulator on the rearquarter window but have employed the old pull strap. Most windowregulators are designed to have the crank handle directly in the middleof-.the window. This is a very unhandy and inconvenient arrangement withthe rear quarter window as it brings the crank handle vdir ectly at theside of the seat. have the raising lever forward of the center of thewindow would in a great many closed jobs interfere with some of thefixtures,l such as the usual toilet case that is placed in a high gradecar. It is the object of the present invention to provide a windowregulator which obviates :these objections 'byx hailfing a handle thatruns along the garnish rai v Furthermore, the window regulator 1sprovided with such an arrangement of levers as to make the operation ofraising and lowering the window extremely easy. The lever arrangement issuch that the thrust and pull on the window is a substantially verticalline thrust at the center of the window rail and consequently the windowwill not bind or cramp in the window-ways to cause friction anddiiiculty in raising or lowering. i

Another feature of this regulator is a special form of clutch whichoffers no resistance to any effort applied to the lever handle but.-which locks when effort is applied through the window as will more fullyappear in the description following.

In the drawings,

Figure l is an elevation of the inside of a Those window regulatorsthatclosed body with the trimming and lockboard broken away, showing theimproved regulator applied to the rear quarter win- Fig 2 is a Sideelevation of the window' regulator operatingparts and handle, viewingthe lock-board from the inside of the F ig. 3'- isa section on the line3 3 of Fig. 2.

F'Fig. 4 is a section on the line 4 4 of Fig. 5 is a section taken onthe line 5 5 of Fig. 7. l

Fig. 6 is an elevation of the operating parts of the regulator showingthe window in its dropped position.

F F ig. 7 is a section on the line 7 7 0f Fig. Sis a section on'the line8 8 of Fig. f

Fig. 9 is a rear View of the supporting plate or cup showing theadjusting devices for the counterbalacing spring.

The regulator supporting plate is designated a and is screwed to theinside of the lock-board b. In back of this plate and in the fro-nt ofthe lock-board is a cup c in which is locatedthe concaved washer dprovided 'with the bolt and nuts e and fitted in to the supporting platea. This washer forms ahub about which winds the spiral counterbalancingspring f.\ `This washer is secured to the inner end of the spring by thehook g on the spring. This washer d is pro-` vided with teeth tA(F ig.9) with whichyis .adapted to engage the catch z which is cut off at oneside. When the catch is in the position shown in Fig. 9, it locks in thegullets of teeth h and prevents the .hub from turning. When it isdesired to tighten or loosen the counterbalancing spring this catch z',which is on the back of the cup o and exposed through the board b, maybe readily reached by simply removing the trimming on the front of theboard b. The

4catch may be then turned to bring the flat side adjacent the teeth 71,.This permits the hub to be turned by placing a tool therein. The hub maybe turned such a number of notches as is necessary to tighten or loosenthe spring. Thereupon the catch z' may be turned back into engagementbetween the teeth to hold the hub fixed. The other end of the spring isengaged by the stud y' which 'is fastened togthe lever lo. This lever kis fulcrumed onthe hub boltv e. The lever k has its swinging end pivotedto the lever m which has one end secured to a check link n, which ishungfrom the pivot p secured to the anchoring strip w. The lever m has Iits end of largerswinging arc pivoted to a short link Q which in turn ispivoted by the pin'and cotter r to the bottom rail s ofthe window.4 Thesupporting plate a is countersunk at t, permitting the pin j to swing inthe plate and wind up the counterbalacing spring when the window goesdown.

Pivoted on the bolt e is a bell crank lever fw whose vright hand arm 1cooperates with a link gto form in effect' a pair of toggle arms forthrusting on the windowv lifting lever fm..

When these toggle arms reach substantially a center line position, asshown in Fig. 2, the pin and shoulder a prevent the toggle arms fromthrowing any further. This center position prevents any effort directedon the window lifting lever m from breaking the.

toggle. The consequence is that when the window is in'itsuprightposition these toggle arms present an effective lock to hold itl in thispositionwithout any other aid, such as the clutch presently to bedescribed.

The position of the levers is such in the Ylowermost position of thewindow as to ef-l fectively-lock the window from jumping due to thejolting of the car. Note the position of the operating parts in Fig. 6.Any elfort of the window to raise is resisted by the levers ultimatelytransmitting a straight line thrust on the link 2. Thisv permits acushion 100 of felt or rubber to be used at the bottom of the windowtravel and the window may be jammed thereinto and locked in antirattlingposition by the` levers being arranged so that'one .of them (2) assumesa dead center position t0 any thrust originating in the window.

breaking of the toggle is effected vsimilarly by anotherpair of togglearms y and' 1 thrusting on the same iXed pivot e. As is well known,toggle levers or arms convert a force striking the toggleat the knee andtraveling through a considerable distance into a greater force at theends of the toggle traveling through a less distance. In short, theleverage is considerably multiplied. This takes 'place in both sets of'toggle arms.

Hence the leverage is considerable. Furthermore, `the toggle arms 1 andy secure the additlonal advantage of locking against any l1/screwed tothe inside of the endwise thrust brought thereupon. And additionally,the toggle lever le, in conjunction with the stud j, acts as acounterbalancing spring winding element. j y

- The toggle arms, 1, y, are broken or straightened out by the movementof the bell crank lever w. As the resistance arm of this lever isconsiderably shorter than the power arm it will be vevident, thatv hereyalso the leverage increases. connected by the engages in the groove ofthe channeled track lock-board. This track comprises a channeled trackhaving turned-over ianges 5, 6l (see A .carriage 7 rides on this trackwhich 1s provided Awith fiber rolls 8 that are riveted theretor and thatrun in the channel. Slitted The end of this` lever' is link 2 with a.slide 3 which fiber blocks 9 engage the under flange 6 of thetrack andstraddle the same. The hooks v1() of the carriage engage over-theseblocks.

A slitted liber block 11 engages inthe straddling position overtheipperflange 5.

nstruck-in hook-12 engages over this block.

These hooks 10 and 11 in combination with the blocks securely lock thecarriage on the track so that it can be disengaged therefrom j only bysliding off the end. The slide 3 is locked loosely into the carriagewhen the carriage is assembled upon the track, as will beseen from theposition of the parts in Fig. 2. This slide 3 of springs 13 anchored inthe ends which engage over the prow'at each end of the slide and tend toforce the disks or rolls 14 toward each other. Notice, however, that theupper' surface of the slide 3 that supports the rolls "inclines upwardlytoward the center from each end, forming wedging surfaces. Hence anyattempt to move the slide as an effort applied through theA link 2 willforce a wedging surface up under either roll and consequently wedge theroll between the block and the track and prevent any movement. On theother hand, if the carriage is moved by the handle 15, the turned-in lug16 (Fig. 7 will move the roll 14 and through it thrust upon the prow ofthe slideand in noway cause the same to bind against the track. Theconsequence is that a clutch is afforded which locks when actuatedthrough effort applied to the window and which runs free when effort isapplied through the handle.

It will be apparent thatthe lifting and lowering can be done bythelevers alone, omitting the check link fn, and the lower end of the leverm. In this event it will be advisable to omit the link g and attach thelever m directly to the window rail s. However, the check link n and theextended lever is provided with apair m play a very important part inanim-v ment. Of'cou'rse, the very best length "of end of the lever m totravel in a substantially vertical path. The pivot 20 describes afixedarc. Without the check link n the link Qv on the first thrust movementof the lever m would swing through 90 until it jammed against the bottomof the window rails; in the first pull of the lever m, in lowering thewindow, the link g would simply swing into straight line positionl withthe lever m. Either of these occurrences would tend to cramp the windowin its ways. The check linkby reason of swinging in a determined arccompels the end of the lever m to travel in a prescribed path andbecause of the loose connection through the link g with the window takesthe ,stresses off the window frame and transfers them to the check linkwhere they may be taken care of with a minimum of friction and loss ofpower. It will be found by experimentation that almost any length ofcheck link will cause the end of the lever toV travel through almost astraight vertical line within a given range of movecheck link andplacement will dependv altogether upon variable factors, such as thelength of the levers m and` c, and hence, it will have to be in eachcase determined by a cut and try method.

The handle 15 is offset over the fixture in no way interferes with anyof the fittings in the car.

What I claim is:

l. In a window regulator, the combination Iof a frame, a window slidablevertically in the frame', a pair of toggle levers for lifting the windowhaving a fixed pivot at one4 end of the toggle, a second pair of togglearms by which the toggle leversmay be straightened or broken and pivotedon the same fiXed pivot and operatively engaging the first toggle armsnear their knee, and means for operating said second pair of togglearms.

2. In a window regulator, the combination of a frame, a window slidablevertically therein, a transverse track, a slide slidable thereon, asystem o-f levers between the slide and the window for lifting orlowering the same, a handle for operating the slide, and clutch devicesin connection with said slide and handle which jam and lock when effortis applied through the lever system and which allow the slide to runfreely when effort is applied by the actuating handle.

garnish rail 17 and sli-des therealong. Hence this 3. In a windowregulator, the combination of a frame, a window slidable verticallytherein, operating parts for raising and lowering the window, and meansfor actuating the operating parts including a transverse track, acarriage thereon, a slide carried along on the track with the saidcarriage and connected with the operating parts, and clutch membersbetween the slide and the carriage which jam against the track wheneffort is applied through the operating parts and which run freely wheneffort is applied' through the carriage.

4. In a window regulator, the combination of a' frame, a window slidablevertically therein, operating parts for lowering or lifting the window,and means for actuating the Same including a transverse track, acarriage slidable on the track, a slide loosely carried along by thecarriage and connected with the operating parts and provided withwedging surfaces androlling members between the wedging surface of theslide and the track whereby effort applied through the operating partsand slide tends to jam the rolling members against the track by bringingthe wedging surface thereunder, while effort applied through thecarriage causes the slide to run freely on the track to actuate theoperating parts. 1

5. Ina window regulator, the combination of a frame, a window slidablevertically therein, operating parts for lifting or lowering the window,and means for actuating the same including a channel-like track withoppositely-directed outwardly -extending flanges, a carriage comp-risingturned-over hooks or lugs adapted to engage around the flanges to lockthe carriage in place, a slide having raised ends or prows looselyengaged within the carriage and connected w'ith the operating parts andprovided with wedging surfaces, and rolling members between the wedgingsurfaces and the raised ends or prows of the slide, and a driving lugextending laterally from the carriage to engage between thev rollingmembers whereby effort applied to the operating parts jams the slide androlling members in the channel while effort applied throughv thecarriage drives the slide freely through either roll.

6. In a window regulator, a supporting plate, a hub journaled in thesupporting pla-te, a. coiled Acounterbalancing spring having its innerend secured to the hub, an operating part of the window regulatormechjournaled in saidcounterbalancing spring.

8. In a window regulator, the combina-- i tio-n of a lockboard having. abored portion,

a cup-like supporting plate set in the bored portion of theboard andhaving its rear exposed through the front of the board, a hub cup-likesupporting plate and having on the outside of the cup a flange formedinto teeth, and a catch pivoted on the outside or rear of the cupadapted to lengage between the teeth but vremovable from the teeth byrotation, a counterbal-4 ancing spring wound about said hub and vhavingits lnner end secured thereto, and

a window operating part securpd to the other end "of the spring. y

9. In a window regulator, the combination of a frame, awindow slidablevertically therein, a pair of toggle levers for lifting the window, oneof the toggle levers having an extension at the knee end of the lever, acheck link secured to vsaid extension, and means for breaking orstraightening the toggle levers to raise or lower the window. 10. In awindow regulator, the combina- Y tion of a window guided vertically, a'lever immediately under the window for thrusting or pulling said windowto raise or lower the same, and means operating on the other end of thelever to guide the same so that the thrust of the lever. issubstantially a vertical thrust on a single straight line.

11. In `a window regulator, the combination of a windowguidedvertically, a lever immediately vunder the window, operating partsconnected therewith for raising and lowering the window, and a checklink having one end secured to a stationary pivot 'and operating inconnection with the end of said lever remote from the window to guidethe thrusting end ofthe lever in a substantially vertical path 1n asingle straight line.

12. In a window regulator, the combination of. awindow guidedvertically, a lever for thrusting the same upwardly or pulling the samedownwardly, operating parts connected with the lever for furnishing thepower, and a check link secured to the end of thellever opposite thethrusting end for guiding the lever so that its thrusting end itravelsin a substantially vertical straight 13. In a window'regulator, thecombination of a window guided vertically, a link secured to the bottomthereof, a lever secured to the end of the link for thrusting the windowupward or .pulling the window downward, operating parts for raising andlowering the window, and guiding means on the opposite end of the levercausing the thrustin end of the lever to run through a substantiallystraight vertical path and thereby keep the connecting link with thewindowin substantially vertical position.

14E. In a window regulator, the combination of awindow guidedvertically, a link secured to the bottom of the window, a lifting leversecured to the link at one end, a

check link secured to the opposite end of the lever to cause thethrusting endof the lever todescribe substantially a vertical path, andmeans for operating the said lever. l 15. In a window regulator, thecombination of a window guided vertically, a lever having a connectionwith the window so that the. said lever end may move slightly withrespect thereto, means for swinging-the ,lever, and a check-link on theopposite end of the lever for causing the thrusting end -of the lever tomove in a substantially vertical v line.

16. In a window regulator, the-combinai tion of aV window guidedvertically, a single pair of toggle arms m and ik: for raising orlowering the window, the toggle arm k being4 provided with a fixedfulcrum, and means for folding or straightening out said tog. gle armsincluding a pair of toggle arms y and l operating at one end yonja fixedfulcrum.

17. In a window regulator, the combination ofV a window guidedvertically, a pair of toggle arms m and 7c for raising and low- .eringsaid window, the toggle arm lo beingprovided with a fixed fulcrum, andmeans for foldingorstraightening out said toggle arms including a pairof short toggle arms y and 1,'the latter of which is part of the bellcrank lever w.

18. In a window regulator, the combination of awindow guided vertically,a slide for actuating purposes, and a) system of levers and linksconnecting the slide with the window arranged so that when the window isin its lowermost position the link immediately connected with thel slideis on substantially a dead center thrustvposition as regards any backthrust through the levers and thereby locking the window in itslowermost position.

19. In a window regulator, the combina# tion of a window guidedvertically, a slide slidable transversely of the window, a system oflevers and links connecting the slide with the window and arranged tosetone of the members at a substantially dead center position to anyback thrust when the window is in its lowermost position.

20. In a' wi ndow regulator, the combination of a Window guidedvertically, a pair of toggle arms m and lo for raising and 10W- Veringvthe window, the toggle arm k being provided with a fixed fulcrum, a setof le-l f vers y and w-l for folding or straightening the toggle leversmand v, -a transverselyguidedslide, and ay link connecting the slideWith the end of the leverw-l. i

21. I n a Window regulator, the .combination of a Window guidedvertically, a pair of toggle arms m and lc for raising and loweing theWindow, the toggle arm 7c being prothe Window link 2fconnectig the slideWith the end of the levert w-l,said parts arranged so that When theWindow is inv its lower position the link 2 is on substantially a deadoenter thrust position as v'regards any back v thrust :through thelevers.

In testimony whereof affix my signature.

ERNEST E. lHEINTr.

